Do bigger orbits take longer?

Bigger orbits take longer to go around, just like bigger swings take longer to swing back and forth.

Imagine you're on a playground swing. If your swing is short, you zoom back and forth quickly. But if your swing is really long, it takes more time to complete each full swing, up and down. That's because the path you follow is longer, and gravity pulls you slower when you’re farther away.

Like a car on a track

Think of an orbit like a racecar going around a track. If the track is small, the car zooms around it quickly. But if the track is huge, like a big loop around the playground, the car has to travel more distance, so it takes longer to finish each lap.

Gravity's gentle pull

The farther something is from what it’s orbiting (like Earth or the Sun), the weaker gravity pulls it. That means it moves slower and takes longer to complete its full journey around, just like you take longer to swing on a long rope than on a short one.

So, bigger orbits = longer journeys = more time to go all the way around! Bigger orbits take longer to go around, just like bigger swings take longer to swing back and forth.

Imagine you're on a playground swing. If your swing is short, you zoom back and forth quickly. But if your swing is really long, it takes more time to complete each full swing, up and down. That's because the path you follow is longer, and gravity pulls you slower when you’re farther away.

Like a car on a track

Think of an orbit like a racecar going around a track. If the track is small, the car zooms around it quickly. But if the track is huge, like a big loop around the playground, the car has to travel more distance, so it takes longer to finish each lap.

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Examples

  1. A satellite far away from Earth takes longer to go around it than one that's close by.
  2. Imagine running around a small park versus a huge stadium, the bigger one takes more time.
  3. The Moon takes about a month to orbit Earth, while a low-Earth satellite might do it in just 90 minutes.

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